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conversion.go
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conversion.go
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/*
Copyright 2015 The Kubernetes Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package v1beta1
import (
"fmt"
"k8s.io/kubernetes/pkg/api"
"k8s.io/kubernetes/pkg/api/unversioned"
v1 "k8s.io/kubernetes/pkg/api/v1"
"k8s.io/kubernetes/pkg/apis/autoscaling"
"k8s.io/kubernetes/pkg/apis/batch"
"k8s.io/kubernetes/pkg/apis/extensions"
"k8s.io/kubernetes/pkg/conversion"
"k8s.io/kubernetes/pkg/runtime"
"k8s.io/kubernetes/pkg/util/intstr"
)
func addConversionFuncs(scheme *runtime.Scheme) error {
// Add non-generated conversion functions
err := scheme.AddConversionFuncs(
Convert_extensions_ScaleStatus_To_v1beta1_ScaleStatus,
Convert_v1beta1_ScaleStatus_To_extensions_ScaleStatus,
Convert_extensions_DeploymentSpec_To_v1beta1_DeploymentSpec,
Convert_v1beta1_DeploymentSpec_To_extensions_DeploymentSpec,
Convert_extensions_DeploymentStrategy_To_v1beta1_DeploymentStrategy,
Convert_v1beta1_DeploymentStrategy_To_extensions_DeploymentStrategy,
Convert_extensions_RollingUpdateDeployment_To_v1beta1_RollingUpdateDeployment,
Convert_v1beta1_RollingUpdateDeployment_To_extensions_RollingUpdateDeployment,
Convert_extensions_ReplicaSetSpec_To_v1beta1_ReplicaSetSpec,
Convert_v1beta1_ReplicaSetSpec_To_extensions_ReplicaSetSpec,
// autoscaling
Convert_autoscaling_CrossVersionObjectReference_To_v1beta1_SubresourceReference,
Convert_v1beta1_SubresourceReference_To_autoscaling_CrossVersionObjectReference,
Convert_autoscaling_HorizontalPodAutoscalerSpec_To_v1beta1_HorizontalPodAutoscalerSpec,
Convert_v1beta1_HorizontalPodAutoscalerSpec_To_autoscaling_HorizontalPodAutoscalerSpec,
// batch
Convert_batch_JobSpec_To_v1beta1_JobSpec,
Convert_v1beta1_JobSpec_To_batch_JobSpec,
)
if err != nil {
return err
}
// Add field label conversions for kinds having selectable nothing but ObjectMeta fields.
for _, k := range []string{"DaemonSet", "Deployment", "Ingress"} {
kind := k // don't close over range variables
err = api.Scheme.AddFieldLabelConversionFunc("extensions/v1beta1", kind,
func(label, value string) (string, string, error) {
switch label {
case "metadata.name", "metadata.namespace":
return label, value, nil
default:
return "", "", fmt.Errorf("field label %q not supported for %q", label, kind)
}
},
)
if err != nil {
return err
}
}
return api.Scheme.AddFieldLabelConversionFunc("extensions/v1beta1", "Job",
func(label, value string) (string, string, error) {
switch label {
case "metadata.name", "metadata.namespace", "status.successful":
return label, value, nil
default:
return "", "", fmt.Errorf("field label not supported: %s", label)
}
},
)
}
func Convert_extensions_ScaleStatus_To_v1beta1_ScaleStatus(in *extensions.ScaleStatus, out *ScaleStatus, s conversion.Scope) error {
out.Replicas = int32(in.Replicas)
out.Selector = nil
out.TargetSelector = ""
if in.Selector != nil {
if in.Selector.MatchExpressions == nil || len(in.Selector.MatchExpressions) == 0 {
out.Selector = in.Selector.MatchLabels
}
selector, err := unversioned.LabelSelectorAsSelector(in.Selector)
if err != nil {
return fmt.Errorf("invalid label selector: %v", err)
}
out.TargetSelector = selector.String()
}
return nil
}
func Convert_v1beta1_ScaleStatus_To_extensions_ScaleStatus(in *ScaleStatus, out *extensions.ScaleStatus, s conversion.Scope) error {
out.Replicas = in.Replicas
// Normally when 2 fields map to the same internal value we favor the old field, since
// old clients can't be expected to know about new fields but clients that know about the
// new field can be expected to know about the old field (though that's not quite true, due
// to kubectl apply). However, these fields are readonly, so any non-nil value should work.
if in.TargetSelector != "" {
labelSelector, err := unversioned.ParseToLabelSelector(in.TargetSelector)
if err != nil {
out.Selector = nil
return fmt.Errorf("failed to parse target selector: %v", err)
}
out.Selector = labelSelector
} else if in.Selector != nil {
out.Selector = new(unversioned.LabelSelector)
selector := make(map[string]string)
for key, val := range in.Selector {
selector[key] = val
}
out.Selector.MatchLabels = selector
} else {
out.Selector = nil
}
return nil
}
func Convert_extensions_DeploymentSpec_To_v1beta1_DeploymentSpec(in *extensions.DeploymentSpec, out *DeploymentSpec, s conversion.Scope) error {
out.Replicas = &in.Replicas
out.Selector = in.Selector
if err := v1.Convert_api_PodTemplateSpec_To_v1_PodTemplateSpec(&in.Template, &out.Template, s); err != nil {
return err
}
if err := Convert_extensions_DeploymentStrategy_To_v1beta1_DeploymentStrategy(&in.Strategy, &out.Strategy, s); err != nil {
return err
}
if in.RevisionHistoryLimit != nil {
out.RevisionHistoryLimit = new(int32)
*out.RevisionHistoryLimit = int32(*in.RevisionHistoryLimit)
}
out.MinReadySeconds = int32(in.MinReadySeconds)
out.Paused = in.Paused
if in.RollbackTo != nil {
out.RollbackTo = new(RollbackConfig)
out.RollbackTo.Revision = int64(in.RollbackTo.Revision)
} else {
out.RollbackTo = nil
}
if in.ProgressDeadlineSeconds != nil {
out.ProgressDeadlineSeconds = new(int32)
*out.ProgressDeadlineSeconds = *in.ProgressDeadlineSeconds
}
return nil
}
func Convert_v1beta1_DeploymentSpec_To_extensions_DeploymentSpec(in *DeploymentSpec, out *extensions.DeploymentSpec, s conversion.Scope) error {
if in.Replicas != nil {
out.Replicas = *in.Replicas
}
out.Selector = in.Selector
if err := v1.Convert_v1_PodTemplateSpec_To_api_PodTemplateSpec(&in.Template, &out.Template, s); err != nil {
return err
}
if err := Convert_v1beta1_DeploymentStrategy_To_extensions_DeploymentStrategy(&in.Strategy, &out.Strategy, s); err != nil {
return err
}
out.RevisionHistoryLimit = in.RevisionHistoryLimit
out.MinReadySeconds = in.MinReadySeconds
out.Paused = in.Paused
if in.RollbackTo != nil {
out.RollbackTo = new(extensions.RollbackConfig)
out.RollbackTo.Revision = in.RollbackTo.Revision
} else {
out.RollbackTo = nil
}
if in.ProgressDeadlineSeconds != nil {
out.ProgressDeadlineSeconds = new(int32)
*out.ProgressDeadlineSeconds = *in.ProgressDeadlineSeconds
}
return nil
}
func Convert_extensions_DeploymentStrategy_To_v1beta1_DeploymentStrategy(in *extensions.DeploymentStrategy, out *DeploymentStrategy, s conversion.Scope) error {
out.Type = DeploymentStrategyType(in.Type)
if in.RollingUpdate != nil {
out.RollingUpdate = new(RollingUpdateDeployment)
if err := Convert_extensions_RollingUpdateDeployment_To_v1beta1_RollingUpdateDeployment(in.RollingUpdate, out.RollingUpdate, s); err != nil {
return err
}
} else {
out.RollingUpdate = nil
}
return nil
}
func Convert_v1beta1_DeploymentStrategy_To_extensions_DeploymentStrategy(in *DeploymentStrategy, out *extensions.DeploymentStrategy, s conversion.Scope) error {
out.Type = extensions.DeploymentStrategyType(in.Type)
if in.RollingUpdate != nil {
out.RollingUpdate = new(extensions.RollingUpdateDeployment)
if err := Convert_v1beta1_RollingUpdateDeployment_To_extensions_RollingUpdateDeployment(in.RollingUpdate, out.RollingUpdate, s); err != nil {
return err
}
} else {
out.RollingUpdate = nil
}
return nil
}
func Convert_extensions_RollingUpdateDeployment_To_v1beta1_RollingUpdateDeployment(in *extensions.RollingUpdateDeployment, out *RollingUpdateDeployment, s conversion.Scope) error {
if out.MaxUnavailable == nil {
out.MaxUnavailable = &intstr.IntOrString{}
}
if err := s.Convert(&in.MaxUnavailable, out.MaxUnavailable, 0); err != nil {
return err
}
if out.MaxSurge == nil {
out.MaxSurge = &intstr.IntOrString{}
}
if err := s.Convert(&in.MaxSurge, out.MaxSurge, 0); err != nil {
return err
}
return nil
}
func Convert_v1beta1_RollingUpdateDeployment_To_extensions_RollingUpdateDeployment(in *RollingUpdateDeployment, out *extensions.RollingUpdateDeployment, s conversion.Scope) error {
if err := s.Convert(in.MaxUnavailable, &out.MaxUnavailable, 0); err != nil {
return err
}
if err := s.Convert(in.MaxSurge, &out.MaxSurge, 0); err != nil {
return err
}
return nil
}
func Convert_extensions_ReplicaSetSpec_To_v1beta1_ReplicaSetSpec(in *extensions.ReplicaSetSpec, out *ReplicaSetSpec, s conversion.Scope) error {
out.Replicas = new(int32)
*out.Replicas = int32(in.Replicas)
out.MinReadySeconds = in.MinReadySeconds
out.Selector = in.Selector
if err := v1.Convert_api_PodTemplateSpec_To_v1_PodTemplateSpec(&in.Template, &out.Template, s); err != nil {
return err
}
return nil
}
func Convert_v1beta1_ReplicaSetSpec_To_extensions_ReplicaSetSpec(in *ReplicaSetSpec, out *extensions.ReplicaSetSpec, s conversion.Scope) error {
if in.Replicas != nil {
out.Replicas = *in.Replicas
}
out.MinReadySeconds = in.MinReadySeconds
out.Selector = in.Selector
if err := v1.Convert_v1_PodTemplateSpec_To_api_PodTemplateSpec(&in.Template, &out.Template, s); err != nil {
return err
}
return nil
}
func Convert_batch_JobSpec_To_v1beta1_JobSpec(in *batch.JobSpec, out *JobSpec, s conversion.Scope) error {
out.Parallelism = in.Parallelism
out.Completions = in.Completions
out.ActiveDeadlineSeconds = in.ActiveDeadlineSeconds
out.Selector = in.Selector
// BEGIN non-standard conversion
// autoSelector has opposite meaning as manualSelector.
// in both cases, unset means false, and unset is always preferred to false.
// unset vs set-false distinction is not preserved.
manualSelector := in.ManualSelector != nil && *in.ManualSelector
autoSelector := !manualSelector
if autoSelector {
out.AutoSelector = new(bool)
*out.AutoSelector = true
} else {
out.AutoSelector = nil
}
// END non-standard conversion
if err := v1.Convert_api_PodTemplateSpec_To_v1_PodTemplateSpec(&in.Template, &out.Template, s); err != nil {
return err
}
return nil
}
func Convert_v1beta1_JobSpec_To_batch_JobSpec(in *JobSpec, out *batch.JobSpec, s conversion.Scope) error {
out.Parallelism = in.Parallelism
out.Completions = in.Completions
out.ActiveDeadlineSeconds = in.ActiveDeadlineSeconds
out.Selector = in.Selector
// BEGIN non-standard conversion
// autoSelector has opposite meaning as manualSelector.
// in both cases, unset means false, and unset is always preferred to false.
// unset vs set-false distinction is not preserved.
autoSelector := bool(in.AutoSelector != nil && *in.AutoSelector)
manualSelector := !autoSelector
if manualSelector {
out.ManualSelector = new(bool)
*out.ManualSelector = true
} else {
out.ManualSelector = nil
}
// END non-standard conversion
if err := v1.Convert_v1_PodTemplateSpec_To_api_PodTemplateSpec(&in.Template, &out.Template, s); err != nil {
return err
}
return nil
}
func Convert_autoscaling_CrossVersionObjectReference_To_v1beta1_SubresourceReference(in *autoscaling.CrossVersionObjectReference, out *SubresourceReference, s conversion.Scope) error {
out.Kind = in.Kind
out.Name = in.Name
out.APIVersion = in.APIVersion
out.Subresource = "scale"
return nil
}
func Convert_v1beta1_SubresourceReference_To_autoscaling_CrossVersionObjectReference(in *SubresourceReference, out *autoscaling.CrossVersionObjectReference, s conversion.Scope) error {
out.Kind = in.Kind
out.Name = in.Name
out.APIVersion = in.APIVersion
return nil
}
func Convert_autoscaling_HorizontalPodAutoscalerSpec_To_v1beta1_HorizontalPodAutoscalerSpec(in *autoscaling.HorizontalPodAutoscalerSpec, out *HorizontalPodAutoscalerSpec, s conversion.Scope) error {
if err := Convert_autoscaling_CrossVersionObjectReference_To_v1beta1_SubresourceReference(&in.ScaleTargetRef, &out.ScaleRef, s); err != nil {
return err
}
if in.MinReplicas != nil {
out.MinReplicas = new(int32)
*out.MinReplicas = *in.MinReplicas
} else {
out.MinReplicas = nil
}
out.MaxReplicas = in.MaxReplicas
if in.TargetCPUUtilizationPercentage != nil {
out.CPUUtilization = &CPUTargetUtilization{TargetPercentage: *in.TargetCPUUtilizationPercentage}
}
return nil
}
func Convert_v1beta1_HorizontalPodAutoscalerSpec_To_autoscaling_HorizontalPodAutoscalerSpec(in *HorizontalPodAutoscalerSpec, out *autoscaling.HorizontalPodAutoscalerSpec, s conversion.Scope) error {
if err := Convert_v1beta1_SubresourceReference_To_autoscaling_CrossVersionObjectReference(&in.ScaleRef, &out.ScaleTargetRef, s); err != nil {
return err
}
if in.MinReplicas != nil {
out.MinReplicas = new(int32)
*out.MinReplicas = int32(*in.MinReplicas)
} else {
out.MinReplicas = nil
}
out.MaxReplicas = int32(in.MaxReplicas)
if in.CPUUtilization != nil {
out.TargetCPUUtilizationPercentage = new(int32)
*out.TargetCPUUtilizationPercentage = int32(in.CPUUtilization.TargetPercentage)
}
return nil
}